Page summary

PDP

Tested 2023-05-06 05:21:02 using Edge 112.0.1722.39 .(runtime settings).

SummaryWaterfall MetricsVideoFilmstrip CoachPageXrayThird party
| Summary | | Download Video | Download Timeline Log | Download HAR | 

Summary

MetricValue
Page metrics
Performance Score70
Total Page Transfer Size131.9 KB
Requests89
Timing metrics
TTFB [median]432 ms
First Paint [median]1.250 s
Fully Loaded [median]8.109 s
Google Web Vitals
TTFB [median]432 ms
First Contentful Paint (FCP) [median]1.250 s
Largest Contentful Paint (LCP) [median]1.667 s
Cumulative Layout Shift (CLS) [median]0.15
Total Blocking Time [median]5.500 s
Max Potential FID [median]716 ms
CPU metrics
CPU long tasks [median]48
CPU longest task duration721 ms
CPU last long task happens at41.118 s
Visual Metrics
First Visual Change [median]470 ms
Speed Index [median]1.322 s
Visual Complete 85% [median]1.949 s
Visual Complete 99% [median]3.529 s
Last Visual Change [median]3.529 s
Screenshot of run 1

Timings Summary

Metricminmedianmeanmax
Visual Metrics
FirstVisualChange270 ms470 ms408 ms485 ms
LastVisualChange3.225 s3.529 s3.806 s4.665 s
SpeedIndex1.002 s1.322 s1.293 s1.556 s
VisualReadiness2.740 s3.059 s3.398 s4.395 s
VisualComplete851.491 s1.949 s2.093 s2.839 s
VisualComplete952.774 s3.395 s3.600 s4.631 s
VisualComplete993.225 s3.529 s3.795 s4.631 s
RUM Metrics
TTFB394 ms432 ms524 ms747 ms
LCP1.618 s1.667 s1.684 s1.766 s
FCP1.110 s1.250 s1.278 s1.474 s
firstPaint1.110 s1.250 s1.278 s1.474 s
loadEventEnd6.328 s7.628 s7.411 s8.277 s
CLS0.11690.1540.15310.1884
User Timing
AA - CDN Loaded2.302 s2.307 s2.327 s2.373 s
CPU
Total Blocking Time5.452 s5.500 s5.560 s5.729 s
Max Potential FID580 ms716 ms672 ms721 ms
CPU long tasks 43484749
CPU last long task happens at39.600 s41.118 s40.901 s41.984 s
| Waterfall | | Download HAR | 

Waterfall

Run 1 SpeedIndex median

| Video | Download | 

Video

Download video
| Filmstrip | 

Filmstrip

Use--filmstrip.showAll to show all filmstrips.

0 s
0.5 sFirst Visual Change 470 ms
0.6 s
0.8 s
0.9 s
1 s
1.2 sCPU Long Task duration 89 ms
1.3 s
1.4 s
1.5 sFirst Contentful Paint 1.474 sCPU Long Task duration 158 ms
1.6 s
1.7 s
1.8 sCPU Long Task duration 435 msLCP <> 1.766 s
1.9 s
2 sVisual Complete 85% 1.949 s
2.1 s
2.2 sDOM Content Loaded Time 2.102 sCPU Long Task duration 77 ms
2.4 sAA - CDN Loaded 2.373 s
2.7 sCPU Long Task duration 495 ms
3.3 sCPU Long Task duration 52 msCPU Long Task duration 66 ms
3.4 sCPU Long Task duration 97 msVisual Complete 95% 3.395 s
3.6 sLast Visual Change 3.529 sVisual Complete 99% 3.529 sCPU Long Task duration 211 ms
| Performance advice | Best practice advice | Privacy advice | Page info | Technologies | 

Coach

The coach helps you find performance problems on your web page using web performance best practice rules. And gives you advice on privacy and best practices.

I am the coach

Coach score

Performance advice (70)

TitleAdviceScore
Avoid slowing down the critical rendering path (avoidRenderBlocking)The page has 1 blocking requests and 0 in body parser blocking (1 JavaScript and 0 CSS).90
Description: The critical rendering path is what the browser needs to do to start rendering the page. Every file requested inside of the head element will postpone the rendering of the page, because the browser need to do the request. Avoid loading JavaScript synchronously inside of the head (you should not need JavaScript to render the page), request files from the same domain as the main document (to avoid DNS lookups) and inline CSS for really fast rendering and a short rendering path.
Offenders:
  • https://apps.mypurecloud.com/messenger/newrelic/newrelic-agent.js
  • Don't scale images in the browser (avoidScalingImages)The page has 5 images that are scaled more than 100 pixels. It would be better if those images are sent so the browser don't need to scale them.50
    Description: It's easy to scale images in the browser and make sure they look good in different devices, however that is bad for performance! Scaling images in the browser takes extra CPU time and will hurt performance on mobile. And the user will download extra kilobytes (sometimes megabytes) of data that could be avoided. Don't do that, make sure you create multiple version of the same image server-side and serve the appropriate one.
    Offenders:
  • https://images.vans.com/is/image/Vans/VN0A45EN_WHT_HERO...VN0A45EN_WHT_HERO
  • https://images.vans.com/is/image/Vans/VN0A7Q5D_1NU_HERO?$PLP-IMAGE$
  • https://images.vans.com/is/image/Vans/VN000XG8_DJ7_HERO?$PLP-IMAGE$
  • https://images.vans.com/is/image/Vans/VN0A5KXM_W00_HERO?$PLP-IMAGE$
  • https://images.vans.com/is/image/Vans/VN0A3WMA_VNG_HERO?$PLP-IMAGE$
  • Avoid using Google Tag Manager. (googleTagManager)The page is using Google Tag Manager, this is a performance risk since non-tech users can add JavaScript to your page.0
    Description: Google Tag Manager makes it possible for non tech users to add scripts to your page that will downgrade performance.
    Inline CSS for faster first render (inlineCss)The page has both inline CSS and CSS requests even though it uses a HTTP/2-ish connection. If you have many users on slow connections, it can be better to only inline the CSS. Run your own tests and check the waterfall graph to see what happens.95
    Description: In the early days of the Internet, inlining CSS was one of the ugliest things you can do. That has changed if you want your page to start rendering fast for your user. Always inline the critical CSS when you use HTTP/1 and HTTP/2 (avoid doing CSS requests that block rendering) and lazy load and cache the rest of the CSS. It is a little more complicated when using HTTP/2. Does your server support HTTP push? Then maybe that can help. Do you have a lot of users on a slow connection and are serving large chunks of HTML? Then it could be better to use the inline technique, becasue some servers always prioritize HTML content over CSS so the user needs to download the HTML first, before the CSS is downloaded.
    Avoid CPU Long Tasks (longTasks)The page has 49 CPU long tasks with the total of 8.218 s. The total blocking time is 5.729 s and 1 long task before first contentful paint with total time of 89 ms. However the CPU Long Task is depending on the computer/phones actual CPU speed, so you should measure this on the same type of the device that your user is using. Use Geckoprofiler for Firefox or Chromes tracelog to debug your long tasks.0
    Description: Long CPU tasks locks the thread. To the user this is commonly visible as a "locked up" page where the browser is unable to respond to user input; this is a major source of bad user experience on the web today. However the CPU Long Task is depending on the computer/phones actual CPU speed, so you should measure this on the same type of the device that your user is using. To debug you should use the Chrome timeline log and drag/drop it into devtools or use Firefox Geckoprofiler.
    Offenders:
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • multiple-contexts
  • multiple-contexts
  • self
  • self
  • self
  • self
  • multiple-contexts
  • self
  • self
  • self
  • cross-origin-descendant
  • cross-origin-descendant
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • multiple-contexts
  • self
  • cross-origin-descendant
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • multiple-contexts
  • self
  • Avoid Frontend single point of failures (spof)The page has 1 request inside of the head that can cause a SPOF (single point of failure). Load them asynchronously or move them outside of the document head.90
    Description: A page can be stopped from loading in the browser if a single JavaScript, CSS, and in some cases a font, couldn't be fetched or is loading really slowly (the white screen of death). That is a scenario you really want to avoid. Never load 3rd-party components synchronously inside of the head tag.
    Offenders:
  • https://fonts.googleapis.com/css?family=Barlow:200,400,700
  • Avoid doing redirects (assetsRedirects)The page has 1 redirect. 1 request are from other domains, it could be 3rd-party assets doing unnecessary redirects. :(90
    Description: A redirect is one extra step for the user to download the asset. Avoid that if you want to be fast. Redirects are even more of a showstopper on mobile.
    Offenders:
  • https://10192411.fls.doubleclick.net/activityi;src=10192411;type=visit0;cat=30da...shoe-pvn000eyew00
  • Avoid extra requests by setting cache headers (cacheHeaders)The page has 31 requests that are missing a cache time. Configure a cache time so the browser doesn't need to download them every time. It will save 6.5 kB the next access.0
    Description: The easiest way to make your page fast is to avoid doing requests to the server. Setting a cache header on your server response will tell the browser that it doesn't need to download the asset again during the configured cache time! Always try to set a cache time if the content doesn't change for every request.
    Offenders:
  • https://www.facebook.com/tr/....facebook.com/tr/
  • https://www.vans.ca/api/products/v1/products/VN000EYEW00/details?locale=en-ca
  • https://www.vans.ca/api/products/v2/products/VN000EYEW00/inventory?locale=en-ca
  • https://www.vans.ca/api/wishlists/v2/favorites
  • https://www.vans.ca/api/products/v1/products/reviews/configuration...ews/configuration
  • https://www.vans.ca/api/products/v1/products/VN000EYEW00/reviews?reviewLocale=en_CA&sort=Newest
  • https://www.vans.ca/content/publish/caas/v1/commercepage/vans-en-ca/product/VN000EYEW00
  • https://f.monetate.net/trk/4/s/a-1c6f575e/p/vans.ca-1.5/919696133-3...a-1.5/919696133-3
  • https://www.facebook.com/tr/....facebook.com/tr/
  • https://vfcorp.d1.sc.omtrdc.net/b/ss/vfcvanscaprod/1/JS-2.13.1/s5769263783158....1/s5769263783158
  • https://nova.collect.igodigital.com/c2/514010235/track_page_view...5/track_page_view
  • https://googleads.g.doubleclick.net/pagead/viewthroughconversion/849976899/...ersion/849976899/
  • https://10192411.fls.doubleclick.net/activityi;src=10192411;type=visit0;cat=30da...shoe-pvn000eyew00
  • https://10192411.fls.doubleclick.net/activityi;dc_pre=CMSsw4Sp5P4CFUvlhwodn0wDXw...shoe-pvn000eyew00
  • https://apps.mypurecloud.com/genesys-bootstrap/genesys.min.js
  • https://c.contentsquare.net/pageview...uare.net/pageview
  • https://www.facebook.com/tr/....facebook.com/tr/
  • https://p.brsrvr.com/pix.gif...rsrvr.com/pix.gif
  • https://bat.bing.com/action/0...bing.com/action/0
  • https://adservice.google.com/ddm/fls/z/dc_pre=CMSsw4Sp5P4CFUvlhwodn0wDXw;src=101...shoe-pvn000eyew00
  • https://www.google.com/pagead/1p-user-list/849976899/...r-list/849976899/
  • https://www.google.com.co/pagead/1p-user-list/849976899/...r-list/849976899/
  • https://apps.mypurecloud.com/messenger/messenger.html
  • https://apps.mypurecloud.com/messenger/newrelic/newrelic-agent.js
  • https://apps.mypurecloud.com/cxbus/cxbus.min.js
  • https://apps.mypurecloud.com/messenger/messagingMiddleware.min.js
  • https://apps.mypurecloud.com/messenger/defaultVendors.min.js
  • https://apps.mypurecloud.com/messenger/vendors.min.js
  • https://apps.mypurecloud.com/messenger/main.min.js
  • https://apps.mypurecloud.com/messenger/engage.min.js
  • https://bam-cell.nr-data.net/1/7a5b0de38e....net/1/7a5b0de38e
  • Long cache headers is good (cacheHeadersLong)The page has 19 requests that have a shorter cache time than 30 days (but still a cache time).81
    Description: Setting a cache header is good. Setting a long cache header (at least 30 days) is even better beacause then it will stay long in the browser cache. But what do you do if that asset change? Rename it and the browser will pick up the new version.
    Offenders:
  • https://images.vans.com/is/image/Vans/VN000EYE_W00_is...s/VN000EYE_W00_is
  • https://images.vans.com/is/image/Vans/VN000EYE_W00_HERO...VN000EYE_W00_HERO
  • https://images.vans.com/is/image/Vans/VN000EYE_W00_ALT1...VN000EYE_W00_ALT1
  • https://images.vans.com/is/image/Vans/VN000EYE_W00_ALT2...VN000EYE_W00_ALT2
  • https://images.vans.com/is/image/Vans/VN000EYE_W00_HERO...VN000EYE_W00_HERO
  • https://images.vans.com/is/image/Vans/VN000EYE_W00_ALT1...VN000EYE_W00_ALT1
  • https://images.vans.com/is/image/Vans/VN000EYE_W00_ALT2...VN000EYE_W00_ALT2
  • https://images.vans.com/is/image/Vans/VN000EYE_BKA_HERO...VN000EYE_BKA_HERO
  • https://images.vans.com/is/image/Vans/VN000EYE_CHR_HERO...VN000EYE_CHR_HERO
  • https://images.vans.com/is/image/Vans/VN000EYE_NVY_HERO...VN000EYE_NVY_HERO
  • https://images.vans.com/is/image/Vans/VN000EYE_BLK_HERO...VN000EYE_BLK_HERO
  • https://images.vans.com/is/image/Vans/VN0A4U38_IYP_HERO...VN0A4U38_IYP_HERO
  • https://images.vans.com/is/image/Vans/VN0A4BV3_TC3_HERO...VN0A4BV3_TC3_HERO
  • https://images.vans.com/is/image/Vans/VN0A38F7_ODJ_HERO...VN0A38F7_ODJ_HERO
  • https://images.vans.com/is/image/Vans/placeholder?$PLP-IMAGE$
  • https://images.vans.com/is/image/Vans/VN0A45EN_WHT_HERO...VN0A45EN_WHT_HERO
  • https://images.vans.com/is/image/Vans/VN0A7Q5D_1NU_HERO?$PLP-IMAGE$
  • https://images.vans.com/is/image/Vans/VN0A5KXM_W00_HERO?$PLP-IMAGE$
  • https://images.vans.com/is/image/Vans/VN0A3WMA_VNG_HERO?$PLP-IMAGE$
  • Always compress text content (compressAssets)The page has 1 request that are served uncompressed. You could save a lot of bytes by sending them compressed instead.90
    Description: In the early days of the Internet there were browsers that didn't support compressing (gzipping) text content. They do now. Make sure you compress HTML, JSON, JavaScript, CSS and SVG. It will save bytes for the user; making the page load faster and use less bandwith.
    Offenders:
    URLTransfer sizeContent size
    https://apps.mypurecloud.com/messenger/newrelic/newrelic-agent.js 327 B28.2 KB
    Total JavaScript size shouldn't be too big (javascriptSize)The total JavaScript transfer size is 4.9 kB and the uncompressed size is 1.4 MB. This is totally crazy! There is really room for improvement here. 50
    Description: A lot of JavaScript often means you are downloading more than you need. How complex is the page and what can the user do on the page? Do you use multiple JavaScript frameworks?
    Offenders:
    URLTransfer sizeContent size
    https://www.vans.ca/_nuxt/b2c6992.js N/A0 b
    https://www.vans.ca/_nuxt/f59d6ef.js N/A0 b
    https://www.vans.ca/_nuxt/1eb611f.js N/A0 b
    https://www.vans.ca/_nuxt/15d3a88.js N/A0 b
    https://www.vans.ca/_nuxt/6674916.js N/A0 b
    https://www.vans.ca/_nuxt/bd0ceed.js N/A0 b
    https://www.vans.ca/_nuxt/d45dd83.js N/A0 b
    https://www.vans.ca/_nuxt/85932a9.js N/A0 b
    https://www.vans.ca/_nuxt/f83739c.js 0 b20.0 KB
    https://www.vans.ca/_nuxt/9bbf8fa.js 0 b30.0 KB
    https://images.vans.com/is/image/Vans/VN000EYE_W00_is...s/VN000EYE_W00_is 803 B549 B
    https://www.vans.ca/_nuxt/3ae570f.js 0 b8.9 KB
    https://www.vans.ca/_nuxt/111747f.js 0 b35.3 KB
    https://f.monetate.net/trk/4/s/a-1c6f575e/p/vans.ca-1.5/919696133-3...a-1.5/919696133-3 82 B62 B
    https://googleads.g.doubleclick.net/pagead/viewthroughconversion/849976899/...ersion/849976899/ 1.2 KB2.6 KB
    https://apps.mypurecloud.com/genesys-bootstrap/genesys.min.js 328 B230.8 KB
    https://apps.mypurecloud.com/messenger/newrelic/newrelic-agent.js 327 B28.2 KB
    https://apps.mypurecloud.com/cxbus/cxbus.min.js 328 B21.6 KB
    https://apps.mypurecloud.com/messenger/messagingMiddleware.min.js 328 B13.1 KB
    https://apps.mypurecloud.com/messenger/defaultVendors.min.js 328 B516.5 KB
    https://apps.mypurecloud.com/messenger/vendors.min.js 331 B148.7 KB
    https://apps.mypurecloud.com/messenger/main.min.js 327 B261.9 KB
    https://apps.mypurecloud.com/messenger/engage.min.js 329 B80.8 KB
    https://bam-cell.nr-data.net/1/7a5b0de38e....net/1/7a5b0de38e 181 B49 B
    Don't use private headers on static content (privateAssets)The page has 3 requests with private headers. Make sure that the assets really should be private and only used by one user. Otherwise, make it cacheable for everyone.70
    Description: If you set private headers on content, that means that the content are specific for that user. Static content should be able to be cached and used by everyone. Avoid setting the cache header to private.
    Offenders:
  • https://vfcorp.d1.sc.omtrdc.net/b/ss/vfcvanscaprod/1/JS-2.13.1/s5769263783158....1/s5769263783158
  • https://nova.collect.igodigital.com/c2/514010235/track_page_view...5/track_page_view
  • https://10192411.fls.doubleclick.net/activityi;dc_pre=CMSsw4Sp5P4CFUvlhwodn0wDXw...shoe-pvn000eyew00
  • Best practice advice (83)

    TitleAdviceScore
    Cumulative Layout Shift (cumulativeLayoutShift)You have a cumulative layout shift score (0.1884) that needs improvements. It is in the Google Web Vitals needs improvement range, shift higher than 0.1. You should manually check the filmstrip or video and check if it will affect the user.50
    Description: Cumulative Layout Shift measures the sum total of all individual layout shift scores for unexpected layout shift that occur. The metric is measuring visual stability by quantify how often users experience unexpected layout shifts. It is one of Google Web Vitals.
    Avoid too many third party requests (thirdParty)The page do 48% requests to third party domains (43 requests and 11.5 kB). First party is 46 requests and 123.6 kB. The regex .*vans.* was used to calculate first/third party requests.50
    Description: Do not load most of your content from third party URLs.
    Avoid unnecessary headers (unnecessaryHeaders)There are 10 responses that sets a p3p header. There are 38 responses that sets both a max-age and expires header. There are 24 responses that sets a pragma no-cache header (that is a request header). There are 57 responses that sets a server header. 0
    Description: Do not send headers that you don't need. We look for p3p, cache-control and max-age, pragma, server and x-frame-options headers. Have a look at Andrew Betts - Headers for Hackers talk as a guide https://www.youtube.com/watch?v=k92ZbrY815c or read https://www.fastly.com/blog/headers-we-dont-want.
    Offenders:
  • https://www.vans.ca/_nuxt/b2c6992.js
  • https://www.vans.ca/_nuxt/f59d6ef.js
  • https://www.vans.ca/_nuxt/1eb611f.js
  • https://www.vans.ca/_nuxt/15d3a88.js
  • https://www.vans.ca/_nuxt/6674916.js
  • https://www.vans.ca/_nuxt/bd0ceed.js
  • https://www.vans.ca/_nuxt/d45dd83.js
  • https://www.vans.ca/_nuxt/85932a9.js
  • https://www.facebook.com/tr/....facebook.com/tr/
  • https://cdpprdcan.vans.ca/DG/DEFAULT/rest/rpc/1094...ULT/rest/rpc/1094
  • https://cdpprdcan.vans.ca/DG/DEFAULT/rest/rpc/1094...ULT/rest/rpc/1094
  • https://cdpprdcan.vans.ca/DG/DEFAULT/rest/rpc/1094...ULT/rest/rpc/1094
  • https://cdpprdcan.vans.ca/DG/DEFAULT/rest/rpc/1094...ULT/rest/rpc/1094
  • https://cdpprdcan.vans.ca/DG/DEFAULT/rest/rpc/1094...ULT/rest/rpc/1094
  • https://cdpprdcan.vans.ca/DG/DEFAULT/rest/rpc/1094...ULT/rest/rpc/1094
  • https://cdpprdcan.vans.ca/DG/DEFAULT/rest/rpc/1094...ULT/rest/rpc/1094
  • https://cdpprdcan.vans.ca/DG/DEFAULT/rest/rpc/1094...ULT/rest/rpc/1094
  • https://www.vans.ca/api/products/v1/products/VN000EYEW00/details?locale=en-ca
  • https://www.vans.ca/api/products/v1/products/VN000EYEW00/details?locale=en-ca
  • https://www.vans.ca/_nuxt/f83739c.js
  • https://www.vans.ca/api/products/v2/products/VN000EYEW00/inventory?locale=en-ca
  • https://www.vans.ca/api/products/v2/products/VN000EYEW00/inventory?locale=en-ca
  • https://www.vans.ca/_nuxt/9bbf8fa.js
  • https://cdpprdcan.vans.ca/DG/DEFAULT/rest/rpc/1094...ULT/rest/rpc/1094
  • https://cdpprdcan.vans.ca/DG/DEFAULT/rest/rpc/1094...ULT/rest/rpc/1094
  • https://cdpprdcan.vans.ca/DG/DEFAULT/rest/rpc/1094...ULT/rest/rpc/1094
  • https://cdpprdcan.vans.ca/DG/DEFAULT/rest/rpc/1094...ULT/rest/rpc/1094
  • https://images.vans.com/is/image/Vans/VN000EYE_W00_is...s/VN000EYE_W00_is
  • https://www.vans.ca/api/products/v1/products/reviews/configuration...ews/configuration
  • https://www.vans.ca/api/products/v1/products/reviews/configuration...ews/configuration
  • https://www.vans.ca/api/products/v1/products/VN000EYEW00/reviews?reviewLocale=en_CA&sort=Newest
  • https://www.vans.ca/api/products/v1/products/VN000EYEW00/reviews?reviewLocale=en_CA&sort=Newest
  • https://images.vans.com/is/image/Vans/VN000EYE_W00_HERO...VN000EYE_W00_HERO
  • https://images.vans.com/is/image/Vans/VN000EYE_W00_ALT1...VN000EYE_W00_ALT1
  • https://images.vans.com/is/image/Vans/VN000EYE_W00_ALT2...VN000EYE_W00_ALT2
  • https://images.vans.com/is/image/Vans/VN000EYE_W00_ALT3...VN000EYE_W00_ALT3
  • https://images.vans.com/is/image/Vans/VN000EYE_W00_HERO...VN000EYE_W00_HERO
  • https://images.vans.com/is/image/Vans/VN000EYE_W00_ALT1...VN000EYE_W00_ALT1
  • https://images.vans.com/is/image/Vans/VN000EYE_W00_ALT2...VN000EYE_W00_ALT2
  • https://images.vans.com/is/image/Vans/VN000EYE_W00_ALT3...VN000EYE_W00_ALT3
  • https://www.vans.ca/content/publish/caas/v1/commercepage/vans-en-ca/product/VN000EYEW00
  • https://www.vans.ca/content/publish/caas/v1/commercepage/vans-en-ca/product/VN000EYEW00
  • https://www.vans.ca/_nuxt/3ae570f.js
  • https://images.vans.com/is/image/Vans/VN000EYE_BKA_HERO...VN000EYE_BKA_HERO
  • https://images.vans.com/is/image/Vans/VN000EYE_CHR_HERO...VN000EYE_CHR_HERO
  • https://images.vans.com/is/image/Vans/VN000EYE_NVY_HERO...VN000EYE_NVY_HERO
  • https://images.vans.com/is/image/Vans/VN000EYE_BLK_HERO...VN000EYE_BLK_HERO
  • https://images.vans.com/is/image/Vans/VN0A4U38_IYP_HERO...VN0A4U38_IYP_HERO
  • https://images.vans.com/is/image/Vans/VN0A38F7_OUE_HERO...VN0A38F7_OUE_HERO
  • https://images.vans.com/is/image/Vans/VN0A4BV3_TC3_HERO...VN0A4BV3_TC3_HERO
  • https://images.vans.com/is/image/Vans/VN0A38F7_ODJ_HERO...VN0A38F7_ODJ_HERO
  • https://www.vans.ca/_nuxt/111747f.js
  • https://bam-cell.nr-data.net/events/1/7a5b0de38e...ents/1/7a5b0de38e
  • https://images.vans.com/is/image/Vans/placeholder?$PLP-IMAGE$
  • https://images.vans.com/is/image/Vans/VN0A45EN_WHT_HERO...VN0A45EN_WHT_HERO
  • https://syteapi.com/et...://syteapi.com/et
  • https://f.monetate.net/trk/4/s/a-1c6f575e/p/vans.ca-1.5/919696133-3...a-1.5/919696133-3
  • https://f.monetate.net/trk/4/s/a-1c6f575e/p/vans.ca-1.5/919696133-3...a-1.5/919696133-3
  • https://www.google-analytics.com/collect...ytics.com/collect
  • https://www.google-analytics.com/collect...ytics.com/collect
  • https://www.google-analytics.com/collect...ytics.com/collect
  • https://www.facebook.com/tr/....facebook.com/tr/
  • https://vfcorp.d1.sc.omtrdc.net/b/ss/vfcvanscaprod/1/JS-2.13.1/s5769263783158....1/s5769263783158
  • https://vfcorp.d1.sc.omtrdc.net/b/ss/vfcvanscaprod/1/JS-2.13.1/s5769263783158....1/s5769263783158
  • https://vfcorp.d1.sc.omtrdc.net/b/ss/vfcvanscaprod/1/JS-2.13.1/s5769263783158....1/s5769263783158
  • https://vfcorp.d1.sc.omtrdc.net/b/ss/vfcvanscaprod/1/JS-2.13.1/s5769263783158....1/s5769263783158
  • https://googleads.g.doubleclick.net/pagead/viewthroughconversion/849976899/...ersion/849976899/
  • https://googleads.g.doubleclick.net/pagead/viewthroughconversion/849976899/...ersion/849976899/
  • https://googleads.g.doubleclick.net/pagead/viewthroughconversion/849976899/...ersion/849976899/
  • https://googleads.g.doubleclick.net/pagead/viewthroughconversion/849976899/...ersion/849976899/
  • https://c.contentsquare.net/v2/events...are.net/v2/events
  • https://c.contentsquare.net/v2/events...are.net/v2/events
  • https://10192411.fls.doubleclick.net/activityi;src=10192411;type=visit0;cat=30da...shoe-pvn000eyew00
  • https://10192411.fls.doubleclick.net/activityi;src=10192411;type=visit0;cat=30da...shoe-pvn000eyew00
  • https://10192411.fls.doubleclick.net/activityi;src=10192411;type=visit0;cat=30da...shoe-pvn000eyew00
  • https://10192411.fls.doubleclick.net/activityi;src=10192411;type=visit0;cat=30da...shoe-pvn000eyew00
  • https://10192411.fls.doubleclick.net/activityi;dc_pre=CMSsw4Sp5P4CFUvlhwodn0wDXw...shoe-pvn000eyew00
  • https://10192411.fls.doubleclick.net/activityi;dc_pre=CMSsw4Sp5P4CFUvlhwodn0wDXw...shoe-pvn000eyew00
  • https://10192411.fls.doubleclick.net/activityi;dc_pre=CMSsw4Sp5P4CFUvlhwodn0wDXw...shoe-pvn000eyew00
  • https://apps.mypurecloud.com/genesys-bootstrap/genesys.min.js
  • https://syteapi.com/et...://syteapi.com/et
  • https://c.contentsquare.net/pageview...uare.net/pageview
  • https://c.contentsquare.net/pageview...uare.net/pageview
  • https://www.facebook.com/tr/....facebook.com/tr/
  • https://p.brsrvr.com/pix.gif...rsrvr.com/pix.gif
  • https://analytics.tiktok.com/api/v2/pixel
  • https://analytics.tiktok.com/api/v2/pixel
  • https://analytics.tiktok.com/api/v2/pixel
  • https://analytics.tiktok.com/api/v2/pixel
  • https://analytics.tiktok.com/api/v2/pixel
  • https://analytics.tiktok.com/api/v2/pixel
  • https://images.vans.com/is/image/Vans/VN0A7Q5D_1NU_HERO?$PLP-IMAGE$
  • https://images.vans.com/is/image/Vans/VN000XG8_DJ7_HERO?$PLP-IMAGE$
  • https://images.vans.com/is/image/Vans/VN0A5KXM_W00_HERO?$PLP-IMAGE$
  • https://images.vans.com/is/image/Vans/VN0A3WMA_VNG_HERO?$PLP-IMAGE$
  • https://bat.bing.com/actionp/0...ing.com/actionp/0
  • https://bat.bing.com/actionp/0...ing.com/actionp/0
  • https://bat.bing.com/action/0...bing.com/action/0
  • https://bat.bing.com/action/0...bing.com/action/0
  • https://www.google-analytics.com/collect...ytics.com/collect
  • https://www.google-analytics.com/collect...ytics.com/collect
  • https://www.google-analytics.com/collect...ytics.com/collect
  • https://adservice.google.com/ddm/fls/z/dc_pre=CMSsw4Sp5P4CFUvlhwodn0wDXw;src=101...shoe-pvn000eyew00
  • https://adservice.google.com/ddm/fls/z/dc_pre=CMSsw4Sp5P4CFUvlhwodn0wDXw;src=101...shoe-pvn000eyew00
  • https://adservice.google.com/ddm/fls/z/dc_pre=CMSsw4Sp5P4CFUvlhwodn0wDXw;src=101...shoe-pvn000eyew00
  • https://adservice.google.com/ddm/fls/z/dc_pre=CMSsw4Sp5P4CFUvlhwodn0wDXw;src=101...shoe-pvn000eyew00
  • https://17de4c10.akstat.io/
  • https://17de4c10.akstat.io/
  • https://www.google.com/pagead/1p-user-list/849976899/...r-list/849976899/
  • https://www.google.com/pagead/1p-user-list/849976899/...r-list/849976899/
  • https://www.google.com/pagead/1p-user-list/849976899/...r-list/849976899/
  • https://www.google.com/pagead/1p-user-list/849976899/...r-list/849976899/
  • https://www.google.com.co/pagead/1p-user-list/849976899/...r-list/849976899/
  • https://www.google.com.co/pagead/1p-user-list/849976899/...r-list/849976899/
  • https://www.google.com.co/pagead/1p-user-list/849976899/...r-list/849976899/
  • https://www.google.com.co/pagead/1p-user-list/849976899/...r-list/849976899/
  • https://apps.mypurecloud.com/messenger/messenger.html
  • https://apps.mypurecloud.com/messenger/newrelic/newrelic-agent.js
  • https://apps.mypurecloud.com/cxbus/cxbus.min.js
  • https://apps.mypurecloud.com/messenger/messagingMiddleware.min.js
  • https://apps.mypurecloud.com/messenger/defaultVendors.min.js
  • https://apps.mypurecloud.com/messenger/vendors.min.js
  • https://apps.mypurecloud.com/messenger/main.min.js
  • https://apps.mypurecloud.com/messenger/engage.min.js
  • https://bam-cell.nr-data.net/1/7a5b0de38e....net/1/7a5b0de38e
  • https://bam-cell.nr-data.net/events/1/7a5b0de38e...ents/1/7a5b0de38e
  • https://analytics.google.com/g/collect...gle.com/g/collect
  • https://analytics.google.com/g/collect...gle.com/g/collect
  • https://analytics.google.com/g/collect...gle.com/g/collect
  • Privacy advice (69)

    TitleAdviceScore
    Avoid using Google Analytics (ga)The page is using Google Analytics meaning you share your users private information with Google. You should use analytics that care about user privacy, something like https://matomo.org.0
    Description: Google Analytics share private user information with Google that your user hasn't agreed on sharing.
    Use a good Content-Security-Policy header to make sure you you avoid Cross Site Scripting (XSS) attacks. (contentSecurityPolicyHeader)Set a Content-Security-Policy header to make sure you are not open for Cross Site Scripting (XSS) attacks. You can start with setting a Content-Security-Policy-Report-Only header, that will only report the violation, not stop the download.0
    Description: Content Security Policy is delivered via a HTTP response header, and defines approved sources of content that the browser may load. It can be an effective countermeasure to Cross Site Scripting (XSS) attacks and is also widely supported and usually easily deployed. https://scotthelme.co.uk/content-security-policy-an-introduction/.
    Offenders:
  • https://www.vans.ca/_nuxt/b2c6992.js
  • Set a permission policy header that opt out your users being tracked in Chrome by FLoC. (disableFLoCHeader)Set a permission policy header that opt out Chrome for tracking what your users do on your site.0
    Description: Googles new tracking method is called Federated Learning of Cohorts (FLoC) and it groups you based on your interests and demographics, derived from your browsing history, to enable creepy advertising and other content targeting without third-party cookies. You can avoid that by setting a Permissions-Policy header with the value of interest-cohort=(). See https://www.eff.org/deeplinks/2021/03/googles-floc-terrible-idea.
    Offenders:
  • https://www.vans.ca/_nuxt/b2c6992.js
  • Set a strict transport header to make sure the user always use HTTPS. (strictTransportSecurityHeader)A strict transport header is set but but no max-age! The header is not set correct.0
    Description: The HTTP Strict-Transport-Security response header (often abbreviated as HSTS) lets a web site tell browsers that it should only be accessed using HTTPS, instead of using HTTP. https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Strict-Transport-Security.
    Do not share user data with third parties. (thirdPartyPrivacy)The page has 31% requests that are 3rd party (28 requests with a size of 6 kB). The page also have request to companies that harvest data from users and do not respect users privacy (see https://en.wikipedia.org/wiki/Surveillance_capitalism). The page do 5 social requests and uses 2 social tools. The page do 11 survelliance requests and uses 4 survelliance tools. The page do 4 utility requests and uses 2 utility tools. The page do 10 analytics requests and uses 6 analytics tools. The page do 7 ad requests and uses 3 ad tools.0
    Description: Using third party requests shares user information with that third party. Please avoid that! The project https://github.com/patrickhulce/third-party-web is used to categorize first/third party requests.
    Offenders:
  • https://www.facebook.com/tr/....facebook.com/tr/
  • https://bam-cell.nr-data.net/events/1/7a5b0de38e...ents/1/7a5b0de38e
  • https://syteapi.com/et...://syteapi.com/et
  • https://f.monetate.net/trk/4/s/a-1c6f575e/p/vans.ca-1.5/919696133-3...a-1.5/919696133-3
  • https://www.google-analytics.com/collect...ytics.com/collect
  • https://www.facebook.com/tr/....facebook.com/tr/
  • https://vfcorp.d1.sc.omtrdc.net/b/ss/vfcvanscaprod/1/JS-2.13.1/s5769263783158....1/s5769263783158
  • https://nova.collect.igodigital.com/c2/514010235/track_page_view...5/track_page_view
  • https://googleads.g.doubleclick.net/pagead/viewthroughconversion/849976899/...ersion/849976899/
  • https://c.contentsquare.net/v2/events...are.net/v2/events
  • https://k-aus1.contentsquare.net/v2/recording....net/v2/recording
  • https://10192411.fls.doubleclick.net/activityi;src=10192411;type=visit0;cat=30da...shoe-pvn000eyew00
  • https://10192411.fls.doubleclick.net/activityi;dc_pre=CMSsw4Sp5P4CFUvlhwodn0wDXw...shoe-pvn000eyew00
  • https://syteapi.com/et...://syteapi.com/et
  • https://c.contentsquare.net/pageview...uare.net/pageview
  • https://www.facebook.com/tr/....facebook.com/tr/
  • https://p.brsrvr.com/pix.gif...rsrvr.com/pix.gif
  • https://analytics.tiktok.com/api/v2/pixel
  • https://analytics.tiktok.com/api/v2/pixel
  • https://bat.bing.com/actionp/0...ing.com/actionp/0
  • https://bat.bing.com/action/0...bing.com/action/0
  • https://www.google-analytics.com/collect...ytics.com/collect
  • https://adservice.google.com/ddm/fls/z/dc_pre=CMSsw4Sp5P4CFUvlhwodn0wDXw;src=101...shoe-pvn000eyew00
  • https://17de4c10.akstat.io/
  • https://www.google.com/pagead/1p-user-list/849976899/...r-list/849976899/
  • https://bam-cell.nr-data.net/1/7a5b0de38e....net/1/7a5b0de38e
  • https://bam-cell.nr-data.net/events/1/7a5b0de38e...ents/1/7a5b0de38e
  • https://analytics.google.com/g/collect...gle.com/g/collect
  • Page info

    Page info
    TitleVans | Classic Slip-On True White Classics Shoe
    Width1350
    Height8322
    DOM elements2592
    Avg DOM depth18
    Max DOM depth27
    Iframes11
    Script tags122
    Local storage56.0 KB
    Session storage242 B
    Network Information API4g
    Resource Hints
    dns-prefetch
    https://f.monetate.net/
    https://sb.monetate.net/
    https://bdzh5mqxzuozszcyf2xq-f-8bc8601b4-clientnsv4-s.akamaihd.net/
    preconnect
    https://images.vans.com/
    prefetch
    https://www.vans.ca/_nuxt/c4b8779.js

    Technologies used to build the page.

    Data collected using Wappalyzer.  Use --browsertime.firefox.includeResponseBodies htmlor --browsertime.chrome.includeResponseBodies htmlto help Wappalyser find more information about technologies used.

    TechnologyConfidenceCategory
    Node.js 100  Programming languages
    Bootstrap 100  UI frameworks
    Vue.js 100  JavaScript frameworks
    Nuxt.js 100  JavaScript frameworks Web frameworks Web servers Static site generator
    Amazon Web Services 100  PaaS
    jQuery 50  JavaScript libraries
    Kibo Personalization 100  Personalisation A/B Testing
    Genesys Cloud 100  Marketing automation Widgets Email
    Cloudflare 100  CDN
    Amazon Cloudfront 100  CDN

    Data collected using Third Party Web.

    Social
    Facebook
    TikTok
    Survelliance
    Facebook
    Google Analytics
    Google/Doubleclick Ads
    Other Google APIs/SDKs
    Utility
    New Relic
    Other Google APIs/SDKs
    Other
    Syte
    Analytics
    Monetate
    Google Analytics
    Adobe Experience Cloud
    iGoDigital
    ContentSquare
    mPulse
    Ad
    Google/Doubleclick Ads
    BloomReach
    Bing Ads
    | Browser metrics | Visual Metrics | Largest Contentful Paint | Cumulative Layout Shift | Metrics from CDP | Server timings | 

    Data from run 1

    Visual Metrics

    Browser Metrics

    Largest Contentful Paint

    When in time the page main content is rendered (collected using the Largest Contentful Paint API). Read more about Largest Contentful Paint.

    Render time 1.766 s
    Load time1.694 s
    URL https://www.vans.ca/...57c9a/desktop.jpg
    Size (width*height)639730
    DOM path
    <>
    LCP

    The largest contentful paint is highlighted in the image. If no element is highlighted the element was removed before the screenshot or the LCP API couldn't find the element.

    The Largest Contentful Paint API highlighted this image as a part of the LCP.

    LCP

    Detected Cumulative Layout Shift

    0.18839 cumulative layout shift collected from the Cumulative Layout Shift API.

    These HTML elements contribute most to the Cumulative Layout Shifts of the page. The higher score, the more layout shift.

    ScoreHTML Element
    0.09309<div data-v-e1379d54="" class="pdp-upsell__container"></div>,<div class="static-layout-footer"></div>
    body > div#__nuxt > div#__layout > div > main > div > div > div#main > div:eq(1) > div:eq(0) > div:eq(2) > div:eq(5),body > div#__nuxt > div#__layout > div > div:eq(2)
    0.09306<div class="static-layout-footer"></div>
    body > div#__nuxt > div#__layout > div > div:eq(2)
    0.00205<div data-v-2aa682ee="" class="product-rating"></div>,<div data-v-705f93d2="" class="product-sizes-wrapper" data-id="additional-sizes-selector-on-static-pdp"></div>,<div data-v-05658f60="" class="product-colors" data-id="colors-selector-on-static-pdp" contextkey="page-content" _states="not-customsPDP"></div>,<div class="product-customize" _states="not-customsPDP"></div>,<div data-v-12bc20b4="" class="product-sizes" data-id="sizes-selector-on-static-pdp"></div>
    body > div#__nuxt > div#__layout > div > main > div > div > div#main > div:eq(1) > div:eq(0) > div:eq(2) > div:eq(0) > div > div > div:eq(2),body > div#__nuxt > div#__layout > div > main > div > div > div#main > div:eq(1) > div:eq(0) > div:eq(2) > div:eq(1),body > div#__nuxt > div#__layout > div > main > div > div > div#main > div:eq(1) > div:eq(0) > div:eq(2) > div:eq(2),body > div#__nuxt > div#__layout > div > main > div > div > div#main > div:eq(1) > div:eq(0) > div:eq(2) > div:eq(3),body > div#__nuxt > div#__layout > div > main > div > div > div#main > div:eq(1) > div:eq(0) > div:eq(2) > div:eq(4)
    0.00019<div class="product-customize" _states="not-customsPDP"></div>,<div data-v-12bc20b4="" class="product-sizes" data-id="sizes-selector-on-static-pdp"></div>
    body > div#__nuxt > div#__layout > div > main > div > div > div#main > div:eq(1) > div:eq(0) > div:eq(2) > div:eq(3),body > div#__nuxt > div#__layout > div > main > div > div > div#main > div:eq(1) > div:eq(0) > div:eq(2) > div:eq(4)
    Layout shift

    The elements that have shifted place is highlighted in the image (that have a higher value than 0.01). If the element shifted outside of the viewport, you will not see it there. It can be hard to understand what content that has shifted, if that's the case, checkout the video or the filmstrip of the run.

    Server timings

    namedurationdescription
    cdn-cache0HIT
    edge8
    dtSInfo00
    dtRpid01895832978
    dtTao01
    ak_p1467639_388792979_204807762_889_17847_78_0

    Custom metrics collected through JavaScript

    There are no custom configured scripts.

    Extra metrics collected using scripting

    There are no custom extra metrics from scripting.

    CDP Performance

    namevalue
    AudioHandlers0
    Documents30
    Frames18
    JSEventListeners2790
    LayoutObjects2996
    MediaKeySessions0
    MediaKeys0
    Nodes24959
    Resources258
    ContextLifecycleStateObservers134
    V8PerContextDatas17
    WorkerGlobalScopes3
    UACSSResources0
    RTCPeerConnections0
    ResourceFetchers33
    AdSubframes0
    DetachedScriptStates3
    ArrayBufferContents40
    LayoutCount238
    RecalcStyleCount684
    LayoutDuration246
    RecalcStyleDuration845
    DevToolsCommandDuration385
    ScriptDuration7444
    V8CompileDuration41
    TaskDuration17280
    TaskOtherDuration8318
    ThreadTime14
    ProcessTime24
    JSHeapUsedSize89829716
    JSHeapTotalSize119959552
    FirstMeaningfulPaint1474
    | Summary  | Largest responses  | Requests and sizes per content type  | Data per domain | Expires and last modified statistics  | Render blocking requests  | 

    PageXray

    How the page is built.

    Summary
    HTTP versionHTTP/2.0
    Total requests89
    Total domains24
    Total transfer size131.9 KB
    Total content size1.8 MB
    Responses missing compression19
    Number of cookies0
    Third party cookies0
    Requests per response code
    20079
    2048
    3021
    3041

    Largest assets on the page (by transfer size)

    Requests and sizes per content type

    ContentHeader SizeTransfer SizeContent SizeRequests
    html0 b616 B1.6 KB2
    javascript1.1 KB4.8 KB1.4 MB24
    image1.4 KB97.2 KB90.2 KB33
    plain0 b5.0 KB1.1 KB18
    json0 b24.3 KB386.2 KB11
    Total2.5 KB132.0 KB1.8 MB88

    Data per domain

    DomainTotal download timeTransfer SizeContent SizeRequests
    www.vans.ca4.982 s12.9 KB443.6 KB20
    www.facebook.com253 ms45 B0 b3
    cdpprdcan.vans.ca625 ms11.4 KB36.8 KB3
    images.vans.com1.375 s96.4 KB90.4 KB23
    bam-cell.nr-data.net829 ms229 B97 B3
    syteapi.com434 ms248 B0 b2
    f.monetate.net133 ms82 B62 B1
    www.google-analytics.com36 ms110 B70 B2
    vfcorp.d1.sc.omtrdc.net117 ms189 B43 B1
    nova.collect.igodigital.com123 ms717 B43 B1
    googleads.g.doubleclick.net153 ms1.2 KB2.6 KB1
    c.contentsquare.net228 ms640 B0 b2
    k-aus1.contentsquare.net113 ms187 B0 b1
    10192411.fls.doubleclick.net162 ms288 B444 B2
    apps.mypurecloud.com1.084 s2.9 KB1.3 MB9
    p.brsrvr.com111 ms168 B43 B1
    analytics.tiktok.com339 ms1.2 KB0 b2
    bat.bing.com214 ms245 B0 b2
    bf60466jbw.bf.dynatrace.com564 ms2.4 KB1.1 KB5
    adservice.google.com79 ms63 B42 B1
    17de4c10.akstat.io148 ms201 B0 b1
    www.google.com85 ms64 B42 B1
    www.google.com.co79 ms64 B42 B1
    analytics.google.com75 ms17 B0 b1

    Expires and last modified statistics

    typeminmedianmax
    Expires0 seconds0 seconds4 weeks
    Last modified-1 day9 weeks53 years

    Render blocking requests

    Render blocking information directly from Chrome.

    BlockingIn body parser blockingPotentially blocking
    100

    Render information

    | Categories | | Tools | | First vs third | 

    Third party

    Third party requests categorised by Third party web.

    CategoryRequests
    social 5
    survelliance 11
    utility 4
    other 2
    analytics 10
    ad 7
    CategoryNumber of tools
    social 2
    survelliance 4
    utility 2
    other 1
    analytics 6
    ad 3

    Third party requests and tools

    social (5 requests)
    Facebook
    TikTok
    survelliance (11 requests)
    Facebook
    Google Analytics
    Google/Doubleclick Ads
    Other Google APIs/SDKs
    utility (4 requests)
    New Relic
    Other Google APIs/SDKs
    other (2 requests)
    Syte
    analytics (10 requests)
    Monetate
    Google Analytics
    Adobe Experience Cloud
    iGoDigital
    ContentSquare
    mPulse
    ad (7 requests)
    Google/Doubleclick Ads
    BloomReach
    Bing Ads

    Unmatched third party domains

    Here's a list of domains that didn't match any tool in Third party web. If you are sure they are third party domains, please do a PR to that project. You can also fine tune the list using --firstParty.

    apps.mypurecloud.com
    bf60466jbw.bf.dynatrace.com
    www.google.com.co

    First party requests and sizes per content type

    Calculated using .*vans.* (use --firstParty to configure).

    ContentHeader SizeTransfer SizeContent SizeRequests
    html0 b0 b0 b0
    css0 b0 b0 b0
    javascript0 b803 B94.7 KB13
    image0 b95.6 KB89.8 KB22
    font0 b0 b0 b0
    json0 b24.3 KB386.2 KB11
    TotalN/A120.7 KB570.8 KB46

    Third party requests and sizes per content type

    ContentHeader SizeTransfer SizeContent SizeRequests
    html0 b616 B1.6 KB2
    css0 b0 b0 b0
    javascript1.1 KB4.1 KB1.3 MB11
    image1.4 KB1.6 KB373 B11
    font0 b0 b0 b0
    plain0 b5.0 KB1.1 KB18
    Total2.4 KB11.2 KB1.3 MB43